If i may pick your brain, what other suspension stuff did you do to urs? DTE brace? etc? and what rpm were u dumping the clutch at? DiD u ever have major problems with spinning? Thanks again
First off, there's never been a Z06 produced that didn't have problems with wheel spin, whether the Z is bone stock or modified. :lol:
As for suspension, etc I have hardened half shafts (both) and a DTE brace. Originally had a tranny/diff brace on my manual and then bought another when I converted to a Turbo 400 tranny (both DTE). I am a big believer in the DTE tranny/diff brace and I think it has saved a lot of rear ends. Believe it or not, I have the original differential in the Z. It has done remarkably well with all the track passes, etc.
As far as 'clutch dumping', I never did that other than to experiment. Traction is the name of the game at the strip and (depending on suspension mods) dumping leads to spin, wheel hop or something breaking.
I released the clutch as quickly as possible but smoothly to give the tires a decent chance to grip. Almost like pulling away from a stop sign very quickly.
The rpm's I launched at varied over the years to the power level I was running at any given time. It really is a trial and error process to determine what rpm
your car launches at the best (I would say the 4400-4900 rpm range worked best for me). The same goes with the QA1 shock adjustments.... I went through a number of different front/back combos until I found the settings that I liked.
My advice...go to the strip, totally disregard whoever lines up in the opposite lane, have a friend videotape your launches and using feedback from the video (as well as your own buttmeter), find the shock settings, tire pressure and launch rpm and technique that works for you.
ps, a quick word of warning...
If you use drag radials at the strip, be very careful of getting
too good traction. Drag radials are sticky all right (after a proper burn out) but they have no 'sidewall flex' like real race tires have and they will cause you to break shafts (halfshafts or driveshaft) or other forms of damage.
I remember once several years ago, I loaned my BFG drag radials to a friend to run his Z06 at the strip. I went with him and repeatedly warned him not to dump the clutch. After he did it in the burn box, I even ran to his door before he launched and warned him again. The light went green, he dumped the clutch and 40 yards down the strip he sat with the engine revving and the car doing nowhere. That's what happens when you break a half shaft. :yeadog:
Mike